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Featured researches published by A. D'Amico.


IEEE Transactions on Nuclear Science | 2008

The Data Acquisition and Transport Design for NEMO Phase 1

F. Ameli; S. Aiello; A. Aloisio; I. Amore; M. Anghinolfi; A. Anzalone; C. Avanzini; G.C. Barbarino; E. Barbarito; M. Battaglieri; M. Bazzotti; R. Bellotti; A. Bersani; Nicolo' Beverini; S. Biagi; M. Bonori; B. Bouhadef; G. Cacopardo; A. Capone; L. Caponetto; G. Carminati; B. Cassano; E. Castorina; A. Ceres; T. Chiarusi; M. Circella; R. Cocimano; R. Coniglione; M. Cordelli; M. Costa

The NEMO collaboration proposes to build an underwater neutrino telescope located South-East off the Sicily coast. This paper describes the concepts underlying the communication link design going over the whole data acquisition and transport from the front-end electronics to the module sending data on-shore through a fiber optic link which relies on Dense Wavelength Division Multiplexing. An on-shore board, plugged into a PC, extracts and distributes data both to first-level trigger and control systems. Underwater apparatus monitoring and controls are guaranteed by oceanographic instruments and dedicated sensors, whose data are packed and sent back to shore using the same optical link. The communication is fully bidirectional, allowing transmission of timing and control commands. The architecture described here provides a complete real-time data transport layer between the onshore laboratory and the underwater detector. During winter 2006 a first prototype of the apparatus has been deployed: calibration results from the currently working system are here reported.


International Journal of Modern Physics A | 2007

NEMO: A PROJECT FOR A KM3 UNDERWATER DETECTOR FOR ASTROPHYSICAL NEUTRINOS IN THE MEDITERRANEAN SEA

I. Amore; S. Aiello; M. Ambriola; F. Ameli; M. Anghinolfi; A. Anzalone; G.C. Barbarino; E. Barbarito; M. Battaglieri; R. Bellotti; Nicolo' Beverini; M. Bonori; B. Bouhadef; M. Brescia; G. Cacopardo; F. Cafagna; A. Capone; L. Caponetto; E. Castorina; A. Ceres; T. Chiarusi; M. Circella; R. Cocimano; R. Coniglione; M. Cordelli; M. Costa; S. Cuneo; A. D'Amico; G. De Bonis; C. De Marzo

The status of the project is described: the activity on long term characterization of water optical and oceanographic parameters at the Capo Passero site candidate for the Mediterranean km3 neutrino telescope; the feasibility study; the physics performances and underwater technology for the km3; the activity on NEMO Phase 1, a technological demonstrator that has been deployed at 2000 m depth 25 km offshore Catania; the realization of an underwater infrastructure at 3500 m depth at the candidate site (NEMO Phase 2).


Journal of Instrumentation | 2014

Status and first results of the NEMO Phase-2 tower

T. Chiarusi; S. Aiello; F. Ameli; M. Anghinolfi; G.C. Barbarino; E. Barbarito; F. Barbato; Nicolo' Beverini; S. Biagi; B. Bouhadef; C. Bozza; G. Cacopardo; M. Calamai; C. Calì; A. Capone; F. Caruso; A. Ceres; M. Circella; R. Cocimano; R. Coniglione; M. Costa; G. Cuttone; C. D'Amato; V. D'Amato; A. D'Amico; G. Debonis; V. De Luca; N. Deniskina; G. De Rosa; C. Distefano

In March 2013, the NEMO Phase 2 tower has been successfully installed in the Capo Passero site, at a depth of 3500 m and 80 km off from the southern coast of Sicily. The unfurled tower is 450 m high; it is composed of 8 mechanical floors, for a total amount of 32 PMTs and various instruments for environmental measurements. The tower positioning is achieved by an acoustic system. The tower is continuously acquiring and transmitting all the measured signals to shore. Data reduction is completely performed in the Portopalo shore station by a dedicated computing facility connected to the persistent storage system at LNS, in Catania. Results from the last 9 months of acquisition will be presented. In particular, the analyzed optical rates, showing stable and low baseline values, are compatible with the contribution mainly of 40K light emission, with a small percentage of light bursts due to bioluminescence. These features reveal the optimal nature of the Capo Passero abyssal site to host a km3-sized Neutrino Telescope.


Journal of Instrumentation | 2013

The optical modules of the phase-2 of the NEMO project

S. Aiello; E. Leonora; F. Ameli; M. Anghinolfi; A. Anzalone; G.C. Barbarino; E. Barbarito; F. Barbato; A. Bersani; Nicolo' Beverini; S. Biagi; M. Bonori; B. Bouhadef; C. Bozza; G. Cacopardo; A. Capone; F. Caruso; A. Ceres; T. Chiarusi; M. Circella; R. Cocimano; R. Coniglione; M. Cordelli; M. Costa; A. D'Amico; R. de Asmundis; G. De Bonis; G. De Rosa; R. De Vita; C. Distefano

A 13-inch Optical Module (OM) containing a large-area (10-inch) photomultiplier was designed as part of Phase-2 of the NEMO project. An intense R&D activity on the photomultipliers, the voltage supply boards, the optical coupling as well as the study of the influences of the Earths magnetic field has driven the choice of each single component of the OM. Following a well-established production procedure, 32 OMs were assembled and their functionality tested. The design, the testing and the production phases are thoroughly described in this paper.


6th International Workshop on Very Large Volume Neutrino Telescopes, VLVnT 2013 | 2014

The trigger and data acquisition for the NEMO-Phase 2 tower

C. Pellegrino; F. Simeone; T. Chiarusi; S. Aiello; F. Ameli; M. Anghinolfi; G.C. Barbarino; E. Barbarito; F. Barbato; Nicolo' Beverini; S. Biagi; B. Bouhadef; C. Bozza; G. Cacopardo; M. Calamai; C. Calì; A. Capone; F. Caruso; A. Ceres; M. Circella; R. Cocimano; R. Coniglione; M. Costa; G. Cuttone; C. D'Amato; V. D'Amato; A. D'Amico; G. Debonis; V. Deluca; N. Deniskina

In the framework of the Phase 2 of the NEMO neutrino telescope project, a tower with 32 optical modules is being operated since march 2013. A new scalable Trigger and Data Acquisition System (TriDAS) has been developed and extensively tested with the data from this tower. Adopting the all-data-to-shore concept, the NEMO TriDAS is optimized to deal with a continuous data-stream from off-shore to on-shore with a large bandwidth. The TriDAS consists of four computing layers: (i) data aggregation of isochronal hits from all optical modules; (ii) data filtering by means of concurrent trigger algorithms; (iii) composition of the filtered events into post-trigger files; (iv) persistent data storage. The TriDAS implementation is reported together with a review of dedicated on-line monitoring tools.


6th International Workshop on Very Large Volume Neutrino Telescopes, VLVnT 2013 | 2014

Long-term optical background measurements in the Capo Passero deep-sea site

M. G. Pellegriti; S. Aiello; F. Ameli; M. Anghinolfi; G.C. Barbarino; E. Barbarito; F. Barbato; Nicolo' Beverini; S. Biagi; B. Bouhadef; C. Bozza; G. Cacopardo; M. Calamai; C. Calì; A. Capone; F. Caruso; A. Ceres; Tommaso Chiarusi; M. Circella; R. Cocimano; R. Coniglione; M. Costa; G. Cuttone; C. D'Amato; V. D'Amato; A. D'Amico; G. Debonis; V. De Luca; N. Deniskina; G. De Rosa

In March 2013, the Nemo Phase-2 tower has been successfully installed at 100 km off-shore Capo Passero (Italy) and 3500 m depth. This 8-floor tower hosts 32 10-inch PMTs. Results from optical background measurements are presented. In particular, the analyzed rates show stable and low baseline values, compatible with the contribution of 40K light emission, with a small percentage of light bursts due to bioluminescence. All these features are a confirmation of the stability and good optical nature of the site.


Nuclear Physics B - Proceedings Supplements | 2004

NEMO: Status of the Project

E. Migneco; S. Aiello; E. Amato; M. Ambriola; F. Ameli; G. Andronico; M. Anghinolfi; M. Battaglieri; R. Bellotti; A. Bersani; A. Boldrin; M. Bonori; F. Cafagna; A. Capone; L. Caponnetto; T. Chiarusi; M. Circella; R. Cocimano; R. Coniglione; M. Cordelli; M. Costa; S. Cuneo; A. D'Amico; V. D'Amico; C. De Marzo; R. De Vita; C. Distefano; Alessandro Gabrielli; E. Gandolfi; A. Grimaldi


EPJ Web of Conferences | 2016

Measurement of the atmospheric muon flux at 3500 m depth with the NEMO Phase-2 detector

C. Distefano; S. Aiello; F. Ameli; M. Anghinolfi; G. C. Barbarino; E. Barbarito; F. Barbato; Nicolo' Beverini; S. Biagi; B. Bouhadef; C. Bozza; G. Cacopardo; M. Calamai; C. Calì; A. Capone; F. Caruso; A. Ceres; T. Chiarusi; M. Circella; R. Cocimano; R. Coniglione; M. Costa; G. Cuttone; C. D'Amato; A. D'Amico; G. De Bonis; V. De Luca; N. Deniskina; G. De Rosa; F. Di Capua


Journal of Instrumentation | 2013

Erratum: The optical modules of the phase-2 of the NEMO project (Journal of Instrumentation)

S. Aiello; E. Leonora; F. Ameli; M. Anghinolfi; A. Anzalone; G. C. Barbarino; E. Barbarito; F. Barbato; A. Bersani; Nicolo' Beverini; S. Biagi; M. Bonori; B. Bouhadef; C. Bozza; G. Cacopardo; A. Capone; F. Caruso; A. Ceres; T. Chiarusi; M. Circella; R. Cocimano; R. Coniglione; M. Cordelli; M. Costa; A. D'Amico; R. de Asmundis; G. De Bonis; G. De Rosa; R. De Vita; C. Distefano


Journal of Instrumentation | 2013

Erratum: The optical modules of the phase-2 of the NEMO project

S. Aiello; E. Leonora; F. Ameli; M. Anghinolfi; A. Anzalone; G. C. Barbarino; E. Barbarito; F. Barbato; A. Bersani; Nicolo' Beverini; S. Biagi; M. Bonori; B. Bouhadef; C. Bozza; G. Cacopardo; A. Capone; F. Caruso; A. Ceres; T. Chiarusi; M. Circella; R. Cocimano; R. Coniglione; M. Cordelli; M. Costa; A. D'Amico; R. de Asmundis; G. De Bonis; G. De Rosa; R. De Vita; C. Distefano

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A. Capone

Sapienza University of Rome

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F. Ameli

Sapienza University of Rome

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R. Cocimano

Istituto Nazionale di Fisica Nucleare

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S. Aiello

Istituto Nazionale di Fisica Nucleare

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R. Coniglione

University of Nice Sophia Antipolis

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G. Cacopardo

Istituto Nazionale di Fisica Nucleare

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M. Anghinolfi

University of Nice Sophia Antipolis

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